Home / 21,999.57-30,384.45-14,913.69

Finding the Fourth Proportional to 21,999.57, 30,384.45 and 14,913.69

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Solution

The fourth proportional to 21,999.57, 30,384.45 and 14,913.69 is: 20,597.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,999.57 : 30,384.45 = 14,913.69 : x
  2. Step 2: Convert to fraction form
    21,999.57/30,384.45 = 14,913.69/x
  3. Step 3: Cross multiply
    21,999.57x = 30,384.45 × 14,913.69
  4. Step 4: Simplify right side
    21,999.57x = 453,144,268.12
  5. Step 5: Solve for x
    x = 453,144,268.12/21,999.57
  6. Step 6: Final answer
    x = 20,597.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.